If using ionic serve I used this solution to do HTTP requests right from the browser.

This project has not been tested in an production enviroment, so the API may not work without the Access-Control-Allow-Origin being set properly.

Mobile App

The mobile app is very basic. It starts you off in a "Welcome" screen that has one button Create Profile. This transitions you into a Create Profile page. After creating a profile and storing the authToken in the device's local storage, it transitions you to a sample page where you can get a user from the protected /api/user/get route. You can also test the 401 server response on this page by clearing out the authToken and requesting a user from /api/user/get. This causes the mobile app to display a Login Modal that requires to first authenticate, and then proceeds to get the user.

The Point

I finally figured out how to link up my Ionic App with a backend using bearer tokens for authentication, so I wanted to provide a solution that will hopefully help you on your journey to creating mobile apps.